Refactoring vpu to dbp (#2)

.gitlab-ci.yml

.gitlab-ci/README.md

.gitlab-ci/build.sh

package-lock.json

package.json

packages/app-shell/.gitlab-ci.yml

packages/app-shell/.gitmodules

packages/app-shell/README.md

packages/app-shell/assets/example.metadata.json

packages/app-shell/assets/index.html

packages/app-shell/package.json

packages/app-shell/rollup.config.js

packages/app-shell/src/app-shell.js

packages/app-shell/src/auth-menu-button.js

packages/app-shell/src/build-info.js

packages/app-shell/src/dbp-activity-example.js

packages/app-shell/src/dbp-app-shell-welcome.js

packages/app-shell/src/dbp-app-shell.js

packages/app-shell/src/i18n.js

packages/app-shell/src/tugraz-logo.js